Module: GreenButton::Parser

Defined in:
lib/ce-greenbutton/parser.rb,
lib/ce-greenbutton/elements/gb_entry.rb,
lib/ce-greenbutton/elements/gb_content.rb,
lib/ce-greenbutton/elements/gb_interval.rb,
lib/ce-greenbutton/elements/gb_data_feed.rb,
lib/ce-greenbutton/elements/gb_usage_point.rb,
lib/ce-greenbutton/elements/gb_reading_type.rb,
lib/ce-greenbutton/elements/gb_interval_block.rb,
lib/ce-greenbutton/elements/gb_interval_reading.rb,
lib/ce-greenbutton/elements/gb_local_time_parameters.rb,
lib/ce-greenbutton/elements/gb_application_information.rb

Overview

Public: Defines a parse method. It accepts both strings and io inputs.

Author ahmed.seddiq Version: 1.0

Defined Under Namespace

Classes: GbApplicationInformation, GbContent, GbDataFeed, GbEntry, GbInterval, GbIntervalBlock, GbIntervalReading, GbLocalTimeParameters, GbReadingType, GbUsagePoint

Class Method Summary collapse

Class Method Details

.parse(input) ⇒ Object

Public: Parses the given input to an instance of GbDataFeed. After parsing the GbDataFeed.entries will contain a hash of defined GbEntries. The key of the hash is the “self” link identifies each entry. the “up” links are also added to the hash with an array value aggregating all sub entries.

For example:

if we have a feed with one UsagePoint, one MeterReading, three IntervalBlocks
the entries hash will be some thing like
{"http://url.of.usage.point.self" => GbEntry(of type UsagePoint)}
{"http://url.of.usage.point.up" => [GbEntry(of type UsagePoint)]}
{"http://url.of.meter.reading.self" => GbEntry(of type MeterReading)}
{"http://url.of.meter.reading.up" => [GbEntry(of type MeterReading)]}
{"http://url.of.interval.block.1.self" => GbEntry(of type IntervalBlock)}
{"http://url.of.interval.block.2.self" => GbEntry(of type IntervalBlock)}
{"http://url.of.interval.block.3.self" => GbEntry(of type IntervalBlock)}
{"http://url.of.interval.block.[1|2|3].up" =>
[GbEntry(of type IntervalBlock), GbEntry(of type IntervalBlock),
GbEntry(of type IntervalBlock)]



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# File 'lib/ce-greenbutton/parser.rb', line 30

def self.parse(input)
  feed = Parser::GbDataFeed.parse(input)
  entries = {}
  feed.entries.each do |entry|
    # map self link to this entry
    entries[entry.self] = entry

    # add this entry to the up link

    # the "up" link will be the "self" link after removing the id part
    # if there is no id part in the "self" link, the "up" link is used.
    up_link = /(.*)\/\d+$/.match(entry.self)[1]
    up_link = entry.up if up_link.nil?

    if entries[up_link].nil?
      entries[up_link] = []
    end
    entries[up_link] << entry
    entry.link = nil
  end

  feed.entries = entries
  feed
end